Home / 20,207.35-27,885.39-11,254.66

Finding the Fourth Proportional to 20,207.35, 27,885.39 and 11,254.66

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Solution

The fourth proportional to 20,207.35, 27,885.39 and 11,254.66 is: 15,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.35 : 27,885.39 = 11,254.66 : x
  2. Step 2: Convert to fraction form
    20,207.35/27,885.39 = 11,254.66/x
  3. Step 3: Cross multiply
    20,207.35x = 27,885.39 × 11,254.66
  4. Step 4: Simplify right side
    20,207.35x = 313,840,542.37
  5. Step 5: Solve for x
    x = 313,840,542.37/20,207.35
  6. Step 6: Final answer
    x = 15,531.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.